It’s the knock every resident here dreads. Early Tuesday morning, a sudden loud banging at the door of my apartment in the southern Chinese city of Guangzhou. Instantly, fear washed over me; health care workers in hazmat suits were ordering everyone to go downstairs because a neighbor had tested positive for Covid-19.

(SOURCE) https://www.cnn.com/2022/12/12/opinions/china-covid-restrictions-lifted-guangzhou-hamer/index.html